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Tag search: "Bacteria"

Promoting health through the life course

Malaria drug could cut women's risk of other infections

A drug used to combat malaria in pregnant women could also treat sexually transmitted infections a study shows. Results show that sulfadoxine-pyrimethamine can cut the risk of gonorrhoea, chlamydia, trichomoniasis and bacterial vaginosis

April 7, 2017
SciDev.net

Preparedness, surveillance and response

Australia helps Sri Lanka to control dengue fever after 250 die

Australia announced programs to help control dengue fever in Sri Lanka, where the disease killed around 250 people in the first half of this year. A short-term program through the WHO will try to reduce the transmission of the dengue virus, aiming for a reduction of more than 50 percent over a period of four to six weeks. A longer-term programme will use Wolbachia bacteria, a microbe that prevents the dengue virus from replicating inside the mosquitoes that carry it, to halt its transmission to people

July 19, 2017
Reuters, ABC news
July 20, 2017
Sunday Times Sri Lanka, New Indian Express

Experts find new strain of cholera that spreads faster

Forty-five strains of ‘vibrio’ cholera were isolated from 10 different places in India and their genetic modules compared to the Haitian strain, which was responsible for the outbreak of cholera in 2010 in Haiti. The new strain does not lead to sporadic cases, but attacks groups of people, which is why it is stated to be virulent. The samples were taken from sewage treatment plants in Hyderabad and 16 strains were isolated, showing that that there was a gene mutation. The new strain of vibrio cholera showed that it had minor difference from the existing strain and this difference didn’t affect the toxin production in the bacteria

June 28, 2017
Deccan Chronicle

How Baking Soda Could Help Fight Deadly Superbugs

Scientists are searching for better tests to identify which antibiotic drugs will work using a universal test that is between 50 and 60 years old. The traditional test uses a substance called the Mueller-Hinton broth, which enables many types of bacteria to grow. A sample from a patient is then pitted against different antibiotics to see what works best. Recent experiments show some bacteria cheat the standard test, but now scientists at the University of California Santa Barbara have hit on a way to make it more accurate using sodium bicarbonate, which is also found in human tissue, and is tricked into thinking the bacteria is in the body by the addition of the chemical

June 27, 2017
Bloomberg

Non communicable diseases

New Antibiotic Resistant Gene Variant Found In Healthy Individual

A team of investigators in China has discovered a new variant on a well-known gene that causes resistance to last resort antibiotics. More troubling, the antibiotic resistant gene was found in a healthy individual during a routine medical examination, suggesting that other healthy carriers may be spreading this resistance unknowingly

March 21, 2017
Asian Scientist

Communicable diseases

Scientists plan to trick Zika-carrying mosquitoes into breeding themselves out of existence

This summer, a Silicon Valley tech company will have millions of machine-raised, bacteria-infected mosquitoes packed into windowless white vans, driven inland and released into the streets of Fresno, Calif. This year`s mosquitoes are being bred and distributed by Verily, a subsidiary of Alphabet that was formerly known as Google Life Sciences. Verily officials estimate that they will release 1 million mosquitoes per week in Fresno County, more than 25 times last summer`s numbers

July 20, 2017
Washington Post
July 14, 2017
Verily.com
July 21, 2017
npr.org

Undersea life holds promise for killing tuberculosis

The UCF team screened 4,400 chemical extracts derived from extracts of sponges and other marine organisms to see if they could kill the dormant tuberculosis bacteria. "To our knowledge this is the largest marine natural product screening on TB and the only one that focused on dormant bacteria," the team said. The team identified 26 compounds that were active against replicating tuberculosis bacteria, 19 killed dormant bacteria including seven that were active against both

July 6, 2017
Science Daily, Infection Control Today

Newly discovered antibiotic could help treat drug-resistant tuberculosis

A newly discovered antibiotic, produced by bacteria from a cystic fibrosis patient, could be used to treat cases of drug-resistant tuberculosis. The team discovered that one particular species, Burkholderia gladioli, which was isolated from the sputum of a child with cystic fibrosis, produces a new antibiotic they called gladiolin. This compound is similar in structure to another antibiotic that has been investigated for its ability to jam bacterial cell machinery, but gladiolin is much more stable and could therefore potentially be a better drug candidate. Further lab testing also showed that this antibiotic blocked the growth of four drug-resistant TB strains

June 24, 2017
News Medical

Canadian team helps find way to break through armour of dangerous biofilms

Not many Canadians have ever heard of "biofilms," but doctors and infectious diseases experts know them well. The slimy, glue-like sheets of bacteria or fungi can grow on tissues or wounds, forming a protective layer around themselves that make it difficult to kill the infections. Now Canadian researchers say they may have found a way of fighting biofilms by breaking up their protective coatings. The team say they can use enzymes help to "bust up" a biofilm`s shell, or matrix, creating holes that allow antibiotics or the immune system to kill the bacteria or fungi. What`s more, the enzyme technology can also prevent biofilms from forming at all

June 24, 2017
CTV News

Unproven Treatments for 'Chronic Lyme Disease' Lead to Severe Infections

In a small but growing number of cases, people in the U.S. have suffered severe bacterial infections, bone damage or septic shock — all because of treatments they received for "chronic Lyme disease." The health care providers who diagnose these patients typically treat them with prolonged courses of antibiotics, lasting months or even years, a report said. That happens even though at least five studies have shown that such courses of antibiotics do not help people who have this diagnosis, according to the report. Moreover, taking antibiotics for that long can result in serious harm

June 15, 2017
Live Science